SU1286321A1 - Die for reversing piercing and blanking parts - Google Patents

Abstract

The invention relates to a tooling for metal forming and can be used for punching holes in blanks of sheet metal or profiles and cutting parts out of them. The purpose of the invention is to increase the reliability of the stamp and simplify its manufacture. The stamp contains movable and fixed plates and punching tools.in the form of a punch, counter-punch, a matrix and an additional matrix. The axis of the punching tools is perpendicular to the axis of the stamp. One supporting element is located on the side of the non-working end of the punch, and the other on the side of the non-working end of the counter-punch. Each support element is mixed along the axis of the punching tools. This movement is made by a wedge attached to a moving plate. Under the action of the supporting elements, the punch, counter-panson and the matrix are mixed, g 1 Cp f-crystals, 3 sludge. (L

Description

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The invention relates to a process tooling for metal forming and can be used for the reinforcement of holes in sheet metal blanks or profiles and the cutting of parts from them.

The purpose of the invention is to increase the reliability of the stamp and simplify its manufacture.

FIG. 1 shows the proposed stamp,

C to the position in which the recess installed therein is installed below the protrusion on the support element 8, the movement of the punches 7 and the punch holder 9 will begin. This will compress buffer 11, the punches 7, inserting counterpansons 6 into the material of the workpiece and removing them blanks with a stepper knife 16. When lifting the press ram, the wedge 19 releases the support element 10 and the punches 7,

lengthwise cut; in fig. 2 - view A 10 and buffer 11 returns them to the original field of FIG. one; in fig. 3 - section BB living. The wedge 20 frees the supporting element 8, and the matrix 4 under the action of the spring 15

FIG. 2

The stamp contains a fixed plate 1, on which racks 2 and 3 are fixed and the matrix 4 and the additional matrix 5 are located. In the working windows of the matrix 4 counterpuns 6 are placed, and in the working windows of the additional matrix 5 punches 7 are placed. The non-working ends of the counter punches 6 rest on the supporting element 8, mounted for movement in the opening of the rack 3. In the opening of the rack 2, there is a punch holder 9 and a support element 10, on the plane of which the punches 7 are supported. Between the additional die 5 and the punch holder 9 are placed buffer 11. The support members 8 and 10 are mounted respectively in the stands 2 and 3 are movable, for which there are guides limiting the matrix 4 and 12. The additional matri25

Here, 14 is reset. Then, the wedge 20, interacting with the lower bevel of the support element 8, returns the punches 6 to the initial position, in which their working ends protrude relative to the mirror of the matrix 4 by an amount equal to 0.55, and pushes the processed part through the failed window G.

The proposed stamp is reliable in operation and relatively simple to manufacture.

Claims (2)

1. A stamp for reversing punching-cutting of parts containing movable and stationary plates coaxially arranged for relative movement along a common axis; stamping tools in the form of a matrix, installed 5 are interconnected by means of a zi ™ ™ operating window of the counter-punching box, dock columns 13, which rests on the springs 14. On the additional matrix 5, the guides of the ruler 15 are fixed and there is a blank groove B in it, which is open from the side of the fixed plate 1 and is equipped with an extra matrix and placed in its working window a punch, support elements, one of which is associated with the punch, and the other with a counter-punch, a mechanism for moving the support element, which is included on three sides by cutting edges. A 35-step wedge fixed on the movable support element 8 is fixed with a stepping plate, characterized in that, for the purpose of the blade 16, the working end of which stands for the working end of the matrix 4 by an amount. component is 1.55, where S is the thickness of the development of the reliability of the stamp and simplification of its manufacture, the axis of the punching tools is located perpendicular material. In the stationary ... axis of the punch axis, each supporting element of the plate is made a failure window G. has been installed with the possibility of interaction The stamp also contains a plate 17, movable with wedges, the length of the working part of the punch, in which the shank is fixed, exceeding the thickness of the additional 18 and wedges 19 and 20. The wedge 19 of the interaction matrix, and the length of the counterpunch with the bevel the support is less than the maximum distance element 10, and the wedge 20 has two speeds 45 between the mirror of the matrix and the plane of the cone and interacts with the bevels, the counter-punch and the supporting element perform the tact. 2. A stamp according to claim 1, characterized in that it is provided with a stepping knife with cutting edges secured in a supporting element mounted in contact with a counter-punch, a dummy groove open on the side of the fixed plate and equipped with cutting on three sides is made in an additional matrix interoperable edges on the supporting element on. The stamp works in the following way. As the press ram (not shown) moves downward, the movable plate 17 and the wedges 19 and 20 lower. Wedge 20 is in contact with the bevel of the support element 8, sets it in motion and at the same time moves the counterpansons b, ensuring their implementation in 2. A stamp according to claim 1, characterized in that it is provided with a stepping knife with cutting edges secured in a supporting element mounted in contact with a counter-punch, a dummy groove open on the side of the fixed plate and equipped with cutting on three sides is made in an additional matrix interoperable edges workpiece material to a depth equal to 0.255. Counterpunch 6, moving, m -55 with cutting edges of a stepping knife, there is no matrix 4 behind you before the clamping with the fixed-plate failing by cooking. After the wedge 20 lowers the window. C to the position in which the recess installed therein is installed below the protrusion on the support element 8, the movement of the punches 7 and the punch holder 9 will begin. This will compress buffer 11, the punches 7, inserting counterpansons 6 into the material of the workpiece and removing them blanks with a stepper knife 16. When lifting the press ram, the wedge 19 releases the support element 10 and the punches 7, Here, 14 is reset. Then, the wedge 20, interacting with the lower bevel of the support element 8, returns the punches 6 to the initial position, in which their working ends protrude relative to the mirror of the matrix 4 by an amount equal to 0.55, and pushes the processed part through the failed window G. The proposed stamp is reliable in operation and relatively simple to manufacture. Invention Formula 1. A stamp for reversing punching-cutting of parts containing movable and fixed plates, coaxially arranged for relative movement along a common axis punching tools in the form of a matrix, installed an additional matrix and placed in its working punch window, supporting elements, one of which is connected a punch, and another with a counter-punch, a mechanism for moving the support element, including wedges, the length of the working part of the punch is made longer than the thickness of the additional matrix, and the length of the counter-punch less than the maximum distance 5 between the mirror of the matrix and the contact plane of the counter-punch and the support element. 0 2. A stamp according to claim 1, characterized in that it is provided with a stepping knife with cutting edges secured in a supporting element mounted in contact with a counter-punch, a dummy groove open on the side of the fixed plate and equipped with cutting on three sides is made in an additional matrix interoperable edges 77 79 / / / 1 V 15 T 13 S Fig. / B id ftsg.Z